Leopold haberer



(No Model.) L. HABERER. PERMUTATION LOOK FOR BOOKS.

No. 534,262. r Patented Feb. 19, 1895.

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' Area-r PERMUTATlON-LOCK FOR BOOKS.

SPECIFICATION forming part of Letters Patent No. 534,262, dated February19, 1895.

Application filed April 14, 1 8 94:.

To all whom it may concern:

Be it known that I, LEoPoLD HABERER, a subject of the Grand Duke ofBaden, German Empire, and a resident of the city of Freiburg, in theGrand Dukedom of Baden, Germany, have invented a certain new and usefulPermutation-Lock for Books; and I do hereby declare that the followingis a full, clear, and exact description of the invention, which willenable others skilled in the art to which it appertains to make and usethe same.

This invention relates to lock up books such as account books, letterbooks, 850. g

The invention consists in the combination of a permutation lock with thebook covers which are provided with holes, eyes or loops through whichare passed the pins and sleeves of two separable locking parts of thepermutation lock, said pins being slidable within the sleeves and thetwo locking parts held together by letter rollers that may be turnedround upon one of the locking parts to engage by an edge in teeth of theother locking part but are not longitudinally displaceable, and theobject of the invention is to prevent the opening of such books byunauthorized persons.

In the drawings, in which similar letters of reference indicate likeparts, Figure 1 is a front edge view of a book fitted with the lock.Fig. 2 shows one of the side plates of the lock. Figs. 3 and 4 aresectional views of the lock parts respectively in the open and closedposition. Fig. 5 is a cross section through line A-B of Fig. 3; Fig. 6,a cross section through line 0-D of'Fig. 4, and Fig. 7 shows the lockarranged in another way relatively to the book.

A indicates the assembled leaves of the book; B, the book covers; 0,mountings on the covers which form the side plates of the lock; D, E,the locking clasps. The part D consists of a clasp plate at the centerof which is fixed a longitudinally slotted sleeve L and at each end asleeve H. The part E consists of a clasp plate at the center of which isfixed the toothed rack N and at each end a pin G. The rack N is of across section correspondingto the slot in the sleeve L so that the rackmay be slid and guided along the longitudinal slot of said sleeve whenthe parts D and E are moved toward or the recesses X of the letterrollers.

Serial No, 507,594- (No model.)

away from one another, (Fig. 3). The pins G are of a cross sectioncorresponding to the sleeves H sothat the pins may be slid and guided.to and fro within the sleeves when the parts D andE are moved toward oraway from one another.

Upon the slotted sleeve L are mounted rollers K provided on their outercircumference with letters and internally with a recess X, which rollersmay turn upon said sleeve but may not be laterally displaced over theouter edge or shoulder of the same. The recesses -X of all the letterrollers form, when these are in a certain position with their lettersforming a secret word or pass word, a straight channel in which thetoothed rack N projecting to some extent out of the slot of the sleeve Lmay be slid. If only one of the rollers K shouldbe turned round fromthis position to take with its full or nnrecessed edge part between twoof the teeth of the rack, then the channel or passage for the rack isobstructed and the parts D, E, can no longer be separated from oneanother and the rollers themselves cannot be removed from the sleeve L.p v

The position of the lock relatively to the book or to the covers mayvary. as desired. A different position of the same is shown by way ofexample in Fig. 7. In this case loops or eyes y are attached to thecovers, and pins G and sleeves H passed through said loops or eyes, theclasps or looking plates D, E, then being horizontally placed.

To lock up the book the locking clasp D is taken in the hand, thesleeves H passed through the holes F in one of the covers of the book,the letter rollers K then so placed as to bring their recesses into lineand compose a secret word or pass word, for instance the word Pastor asshown in Fig. 1, the recesses X of the rollers then forming a straightchannel. The pins G of clasp E are then passed through the holes F inthe other cover of the book and into the sleeves H, the

rack N being at the sametime introduced into the slotted sleeve L sothat the teeth of the rack project outward beyond the slot in the same.This outwardly projecting portion of the rack takes into the channelformed by the pins and rack of clasp E have been passed Afterrespectively into the sleeves H, H, and L, the letter rollers are turnedso that the full or unrecessed part of their sides comes to standbetween the teeth of rack N. The book is then in the locked position, asthe clasp E cannot be drawn away from the clasp D because the rack N isheld fixed by the rollers K and these cannot be removed from the sleeveL.

The book may be unlocked by returning the letter rollers K totheirprevious position in which the word Pastor was presented to view asdescribed, in which position the recesses X form a straight channelreleasing the rack N so that the two locking clasps I) and E may beseparated or drawn away from one another.

\Vhat 1 claim as my invention, and desire to secure by Letters Patent,is

,the slotted sleeve L of clasp D but not being laterally displaceablethereon, substantially as described and shown.

In testimony whereof I sign this specification in the presence of twosubscribing \vitnesses.

L; IIABERER.

\Vitnesses:

IIUBERT TENZ, WILH. STEIGMEYER.

